[The fistula and pseudofistula symptom].
D004432:Ear, Middle; D005402:Fistula; D006801:Humans; D009759:Nystagmus, Pathologic / Q000209:etiology*
EAR, MIDDLE/fistula; NYSTAGMUS/etiology and pathogenesis
Het fistel-en het pseudofistelsymptoom.